10K for a four layer board seems a little high, but not excessive. There are
a lot of variable to be considered:

1) Does the house stock R4000 or is it special order? Special order adds
cost. Additional production line time if the are changing press profiles for
you 1 board.
2) Are you using standard cores or do you require special run material?
Special order adds cost.
3) What is the technology used? 5/5, 4/4, 3/3 trace and space? Smaller
geometries cost extra.
4) What tolerances are you requiring? Tighter tolerances add cost.
5) While R4000 is a "low cost" microwave material but what you need to
remember is most of the Teflon products are in the $20-100 per square foot
range so $10-19 is low cost.

Jeffrey A. McGlaughlin, C.I.D.
Sr. PCB Designer
Battelle Memorial Institute
Columbus Ohio
[log in to unmask]



-----Original Message-----
From: Ken Patel [mailto:[log in to unmask]]
Sent: Tuesday, February 13, 2001 8:06 PM
To: [log in to unmask]
Subject: [TN] Rogers material v/s Lot charge of $10K, ouch!!!


Guys,
We had a four-layer board requiring Rogers's material (R4003) on our
prototype fab. We needed about 10 boards (very small size @1"x2") but
instead we have to pay $10,000 as a lot charge. To me this is very very high
$ number so instead of getting 10 boards we ended up having 500 cards.

My question to all of you is that is it common to charge a lot for Rogers's
material or is our beloved PCB supplier gouging me.

re,
ken patel

----------------------------------------------------------------------------
-----
Technet Mail List provided as a free service by IPC using LISTSERV 1.8d
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt delivery of Technet send the following message: SET
Technet NOMAIL
Search previous postings at: www.ipc.org > On-Line Resources & Databases >
E-mail Archives
Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional
information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700
ext.5315
----------------------------------------------------------------------------
-----

---------------------------------------------------------------------------------
Technet Mail List provided as a free service by IPC using LISTSERV 1.8d
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt delivery of Technet send the following message: SET Technet NOMAIL
Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives
Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional
information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315
---------------------------------------------------------------------------------